Mechanical movement.



101130537. "'P TEN BD JUNE-9,1903, LHOFMANN.

MECHANICAL MOVEMENT. APPLIUALTION FILED ,001'220, 1902.

no MODEL,

m2 NORRIS PETERS co. momumcn wnsumcron. av c.

UNITED STATES Patented June 9, 1903.

PATENT OFFICE.

J OHANN HOFMANN, OF WEST-COVINGTON, KENTUCKY, ASSIGNOR TO ERNEST H.HUENEFELD, OF CINCINNATI, OHIO.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 730,537, dated June 9,1903.

Application filed October 20,1902. Serial No. 128,018. (No model.)

To all whom it may concern:

Be it known that LJOHANN Hornnnma citizen of the United States, residingat West Covington, in the county of Kenton and State of Kentucky;have'invented certain new and useful Improvements in MechanicalMovements, of which the following is a'specification.

My invention relates to anew and improved mechanical movement, and hasfor its object the conversion of continuous rotary motion intoreciprocating motion in different directions in a plurality of drivenobjects, one of which may be also yieldingly mounted for permittingelevation and falling thereof; and the invention will be readilyunderstood from the following description and claims and from thedrawings, in which latter- Figure 1 is a side elevation of my improveddevice with the outer hearing I) omitted and showing the swinging leversin one position in full lines and in assumed position in dotted lines.Fig. 2 is an end elevation of'the same with one of the swinging leverspartly broken away. Fig. 3 is a plan view of my improved device.

Arepresents the supporting-bracket, which may be secured to any desiredobject.

B is a stud on the bracket, on which an approximately hell-crank-shapedswinginglever O is pivoted. The bell-crank swinging lever 0 consists,preferably, of the long sidewardlyextending arm 0 and the shortdownwardlyextending arm c'with the pivot between the extensions. Thelever O has a slot D, in which a box E is adapted to slide. Thecrank-pin f of the crank-shaft F turns in the box.. The crank-shaft F isjournaled in a bearing a of the bracket A and carries a suitable handle,wheel, pulley, or other operating device for turning the shaft,preferably continuously, in a given direction, thereby turning thecrank-pin withit and causing the lever C to rock on its pivot. The leverO has a pintle G, which takes into a slot H of a lever I, pivoted at ato the bracket A. The construction is such that when the crankshaft isrotated continuously in a given di-- rection the outer ends of theswinging levers C and I are reciprocated or rocked simultaneously indifferent directions. An outer hearing 2) may also be provided for thestud B.

The outer end of the swinging lever O has a bearing o ,by means of whichit may be connected to a movable object or connection therewith, asindicated at K. The outer end of the swinging lever'I is provided with aslot L, into which a pin M on a secondmovable v object, as indicated atN, may take for imparting motion to the latter. The slotL permits thedriven object N to move toward and from the pivoted point of the leverI, while having the movements of the swinging lever I imparted to itirrespective of its changes in position stated. It will therefore beseen that by means of my improved device continuous rotary motion in agiven direction is utilized for reciprocating or rocking two drivenobjects simultaneously in different directions, while permitting thosetwo objects to relatively change their positions to each other.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a mechanical movement, the combination of a crank-shaft, a bearingtherefor, asubstantially bell-crank-shaped swingable lever and a secondswingable lover, a pivotal support foreach of the levers intermediate oftheir respective endsand rigid with relation to the first-named bearing,with the levers operatively connected for swinging movement of both,said crank-shaft operatively connected with said first-named leverbetween its pivotal support and oneof its ends form ing a lever of thethird class at that end and a lover of the first class at its other end.

2. In a mechanical movement,the combination of a pair of swingablelevers having pivotal supports rigid with relation to each other, withthe lovers articulated between their pivotal supports, a pair of drivenobjects connectedjwith said levers beyond their respective pivotalsupports, a crank-shaft having a crank-pin, and a sliding connectionbetween the crank-pin and one of said levers located between the pivotalsupport of said lever and the driven object connected with said lever.

3. In a mechanical movement, the combination with a crank shaft and pinadapted to be continuously rotated in a given direction and two drivenobjects adapted to be simultaneously reciprocated thereby in differentdirections, of a pair of swingable levers, a pivotal support for each, asliding connection between the levers, a sliding connection be tween thecrank-pin and one of the levers, a sliding connection between a leverand an object to be moved, with a connection between the other lever andother of said objects to be moved.

In witness whereof I have signed my name hereto in the presence of twosubscribing 25 witnesses.

, JOHANN HOFMANN. WVitnesses:

AUGUST F. HERBSLEB, HERBERT F. HARDEN.

